17 dn clue is advancements (7) I have I?C?A??.
18 dn the clue is Defiles (7) I have D?O?S??.
164 ac the clue is Chore (6) I have CL????.
116 ac the clue is Indulgent spree (6) I have ES????.
152 ac the clue is Struck toe (7) I have ?S???E?
162 ac the clue is Understate 4-4 I have P?A?D?WN.
There are a few others but will try and deal with those before giving in .
philcottie
gday, 17d inroads, 18d debases, 31ac carob, 164ac is only 4 letters & is task or do you mean 104ac which is clothe, 116ac I have esteem?, 152ac stubbed, 143d at one, 162ac play down,
hope this helps, good luck